Pantographic apparatus



April 9 1940 F. J. HOLLEY 2,196,114

PANTOGRAPHI C APPARATUS Filed 001:. 20, 1958 5 Sheets-Sheet 1 ZTJHoZley April 2, 1940. F. .J. HOLLEY PANTOGRAPHIC APPARATUS 3 Sheets-Sheet 2 3 EJHoZley Filed Oct. 20, 1938 April 2, 1940. F. .1. HOLLEY PANTOGRAPHIC APPARATUS 3 Sheets-Sheet 3 val ala Filed Oct. 20, 1938 nr In: Elli 0 I: 0 o

plane of line -5 of Figure 3;

Patented Apr. 2, 1940 UNITED srarss PATENT qorrics PANTOGRAPHIC APPARATUS Frank J. Holley, Venture, Calif.

Application October 20,

3 Claims.

This invention relates to pantographic apparatus.

It is particularly aimed to provide an apparatus of the present character adapted for vertical disposition'and for the reproduction of the contour of the Sides of the human body, other portions thereof, or of other objectsp on a reduced scale, on graphs. p

It is also aimed to provide a novel means for the expeditious mounting and'removal of the graph sheets.

Further, it is an aim to provide an extensible roller means of novel character for contact with the body and also to provide a retractile stylus.

The more specific objects and advantages will become apparent from a consideration of the de- Scription following taken in connection with the accompanying drawings illustrating an operative embodiment.

In said drawings- Figure 1 is a view in front elevation of the apparatus;

Figure 2 is a side elevation thereof, partly broken away; I

Figure 3 is an enlarged, fragmentary front elevation, partly broken away; Figure 4 is a vertical section taken on the line 44 of Figure 3; s Figure ,5. is a horizontal section taken on the Figurefi is a fragmentary elevation of he 'recording magazine, the parts being in open position;

Figure? is an enlarged view of pantograph parts, partly in elevation, and partly in section to disclose details;

Figiu'e8 is a vertical section taken on the line -ll of Figure 3; v

Figure 9 is ahorizontal section taken on the line 9-9 of Figure 8; t

Figure 10 is a fragmentary front elevation, with the stylus confining and guiding plate removed, and

Figure 11 is a vertical section taken on the line- H|l of Figure 3.

Referring specifically to the drawings wherein like reference characters designate like or similar parts, the apparatus has a support generally designated I ll, usually adapted for vertical disposition and it consists of a panel ll, surrounded by a frame 1?. and including cross bars 12a reinforcing the frame and to certain of which and the frame, the panel is fastened as at I 2?). Operatively associated with the support It] is a pantograph generally designated l3 and it consists of 1938, SerialNo. 236,102

an arm I4 parallelwith'a link I5, both of which arejsecured by horizontal pivots It to parallel beams l1 and It. A guide plate l9 is'fastened to the frame or support. at 20 and is disposed in ing between thepanel and. plate l9.. At the upper end, beam has a segmental guide member or plate 22 fastened to a. rod or shaft 23. passing through such arm M. The plate 22 contacts with thepanel I! and is adapted to be manually pped, to which end it is peripherally grooved as at 24. The member 22 ismoved in contact with the panel andserves to facilitate operation of the pantograph and avoid distortion and undue twisting of the armsat the joints. When not in use, the plate ZZ'may be placed in engagement with a spring clip 25 to support the pantograph.

Said pantograph has a stylus in the form of a pencil or otherwise as indicated at 26 which is slidably and rotatably'mounted in a casing 21 attached to the pivot I6, which connects the beam or arm I! and link l5. ,Such stylus has a pin 28 and an expansive'spring 29 surrounds the stylus abutting the pin andone end of the casing 21, .normally urgingthe stylus projected into operative position. The walllof casing 27 on the interior, has a bayonet shaped slot 30 in which the pin 28 moves, and which enables the pin to be re-. tracted and held against the compression of the Spring 2.

The pantograph is also urgedto the position where its stylus 25 is uppermost which end may be accomplished by securing a flexible cord or cable 3! to the pantograph adjacent the stylus as at 33, such flexible element 3| being trained over a' pulley ,34, suit ab ly mounted on the frame and'at the free end of which flexible member, a weight 35 is attached.

A magazine generally designated 36 is adapted to removably mount charts or graph sheets 3! which are traversed and marked by the stylus 26, the same being accessible through a rectangular opening 38 in the panel H and opposite which a Lugs are struck out from the platen which serve as gages in the positioning of the sheets or graphs 3'! thereon and the frame 43 has slots 45 therethrough through which the lugs 45 project in the closed position of the frame 43. Latches 41 are pivoted at 48 on the platen 4| and are movable to overlap the frame 43 to clamp the same in place against the sheets 31. Such frame 43 at the sheet-engaging surface, has minute depressions or openings 49 into which portions of the sheets 31 enter or are pressed as a result of the clamping pressure applied by the plate on to the sheet, to form inter-engagement between the sheet and the frame to guard against displacement of the sheet. Such frame 43 is preferably rectangular as shown, being open to accommodate full movement of the stylus and preferably being of angular form in cross section as best shown in Figure 11.

Extending from the arm l4 opposite side to the plate 22 and fastened in any suitable way to the pivot 23, for instance, is a rod 24 surrounded by a tube 50 held in place by a nut 5| threaded on the rod 24'. On the sleeve 50 is an extension sleeve 52 at the free ends of which a handle or grip 53 is journaled on a rod 54. Suitable antifriction or ball bearing devices, 50a and 50?), are interposed between rod 24' and sleeve or roller 50 since it is essential that the latter roll freely when the graph is taken. Sleeve 52 is preferably exteriorly knurled or corrugated as at 52'. Handle 53 may be engaged to slide the extension 52 into any desired position, to facilitate movement of the latter over the human body or any other object. The structure provides a frame around the stylus for maximum protection, especially preventing the roller 50, should it become detached, striking it. Said stylus has two pins 28 and bayonet slots so that the pressure of the spring will be equalized.

Platen 4! may have an extension at its free end as at 55, to serve as a gripping means facilitating its placing or Withdrawal.

A head gage device 56 is preferably mounted at the top of the frame E2, to facilitate positioning of the person or object from which the graph is to be made. This device consists of a bracket 5'l' fastened to frame l2 and provided with an extension bar 58 slidable therein and adapted to be secured in adjusted positions by a screw 59. Bar 53 adjustably and slidably suspends an auxiliary bracket 60 which in turn adjustably mounts flexible metallic blades El which are clamped in adjusted positions by a screw 62.

In the use of the device, a paper or graph sheet 31 is applied or removed when the magazine 36 is detached from the support 10. When the device is in use, the magazine 36 is in place in the support and the stylus 26 projected so as to traverse the sheet 3! and record thereon. The person from whom the graph is to be made is positioned with the aid of the device 56, the blade 6| preferably engaging the chin. The pantograph is thereafter operated through manipulation of the handle 53, the plate 22 through contact with the panel I l serving to steady the parts, and even being held in one hand while the member 53 is held in the other hand. Tube 52 is moved to the desired position, and with the movement of the handle 53 and/or member 22, member 52 is rolled in contact with the human body at the desired side or sides, portion or portions, according to the graph desired. After the graph is made, the magazine 33 is removed, the graph removed and a new one inserted into the magazine anad the latter replaced by sliding the platen in the grooves 42.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:

1. Apparatus of the class described having a panel provided with an opening therein, means on one side of the panel to secure a sheet in registry with said opening, a guide plate on the other side of said panel having an opening registering with the first mentioned opening, pantographic means extending between the panel and plate, and stylus mechanism on the pantographic means extending on both sides of the pantographic means and through both openings.

2. Apparatus of the class described having a panel provided with an opening therein means on one side of the panel to secure a sheet in regtry with said opening, a guide plate on the other side of said panel having an opening registering with the first mentioned opening, pantographic means extending between the panel and plate, stylus mechanism on the pantographic means extending on both sides of the pantographic means and through both openings, the operation of the stylus means being confined by said openings, and the stylus means being located completely within the confines of the panel.

3. Apparatus of the class described having a panel provided with an opening therein, means on one side of the panel to secure a sheet in registry with said opening, a guide plate on the other side of said panel having an opening registering with the first mentioned opening, pantographic means extending between the panel and plate, stylus mechanism on the pantographic means extending on both sides of the pantographic means and through both openings, 21 plate on the stylus means for guidance and op eratlon of the latter, the latter plate being in contact with the panel, and securing means on the panel engageable by the latter plate to hold the pantographic means in retracted position.

FRANK J. HOLLEY. 

